National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Overcast

61°F

16°C

Humidity 70%
Wind Speed N 7 G 20 mph
Barometer 30.14 in (1020.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 1:53 pm EDT
Extended Forecast for

Millerstown PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 69. North wind around 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. North wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. North wind around 6 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 62. North wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Areas of frost after 4am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Clear then
    Areas Frost

  • Friday

    Friday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64.

    High: 64 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 69. North wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 48. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 66. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 39. North wind around 6 mph.
Thursday
Sunny, with a high near 62. North wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Areas of frost after 4am. Otherwise, clear, with a low around 34.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millerstown PA
 40.55°N 77.14°W (Elev. 489 ft)
Last Update:
2:05 pm EDT Oct 14, 2025
Forecast Valid:
2pm EDT Oct 14, 2025-6pm EDT Oct 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation